EP 0362990 A1 19900411 - Hydrophilic colloid compositions for photographic materials.
Title (en)
Hydrophilic colloid compositions for photographic materials.
Title (de)
Hydrophile Kolloidzusammensetzung für photographische Materialien.
Title (fr)
Compositions colloidales hydrophiles pour matériaux photographiques.
Publication
Application
Priority
GB 8817811 A 19880726
Abstract (en)
Hydrophilic colloid compositions suitable for use in the preparation of photographic silver halide materials comprise a surface active agent having the formula <CHEM> wherein each of R1, R2 and R3 independently is a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; each of X and Y is -H or -Q<->M<+>; Q<-> is an anion; and, M<+> is a cation; provided that when X is -H, Y is -Q<->M<+> and that when X is -Q<->M<+>, Y is -H. The surface active agent may be employed as a coating aid or as a dispersing aid.
IPC 1-7
IPC 8 full level
G03C 1/38 (2006.01)
CPC (source: EP US)
G03C 1/38 (2013.01 - EP US); Y10S 516/04 (2013.01 - EP US); Y10S 516/06 (2013.01 - EP US)
Citation (search report)
- [X] US 2315375 A 19430330 - PAUL NAWIASKY, et al
- [X] GB 551246 A 19430215 - NAT OIL PROD CO
- [YD] US 3948663 A 19760406 - SHIBA KEISUKE, et al
- [Y] US 3762928 A 19731002 - WILLEMS J
- [A] US 4347308 A 19820831 - TAKEUCHI TETSUO, et al
- [A] US 2619500 A 19521125 - CHIDDIX MAX E, et al
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0362990 A1 19900411; EP 0362990 B1 19950201; AT E118104 T1 19950215; AU 3896389 A 19900201; AU 622920 B2 19920430; DE 68920940 D1 19950316; DE 68920940 T2 19950907; GB 8817811 D0 19880901; JP H0268542 A 19900308; US 4988610 A 19910129
DOCDB simple family (application)
EP 89307547 A 19890725; AT 89307547 T 19890725; AU 3896389 A 19890725; DE 68920940 T 19890725; GB 8817811 A 19880726; JP 19068489 A 19890725; US 35821189 A 19890530